128  
CDUS43 KLOT 160635  
CLIDPA  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE CHICAGO IL  
135 AM CDT FRI MAY 16 2025  
   
...............................  
 
...THE DUPAGE AIRPORT CLIMATE SUMMARY FOR MAY 15 2025...  
 
CLIMATE NORMAL PERIOD: 1991 TO 2020  
CLIMATE RECORD PERIOD: 1997 TO 2025  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
...............................................................  
 
TEMPERATURE (F)  
YESTERDAY  
MAXIMUM 93R 3:57 PM 87 2001 71 22 70  
MINIMUM 58 3:22 AM 34 2016 48 10 49  
AVERAGE 76 60 16 60  
 
PRECIPITATION (IN)  
YESTERDAY T 0.54 2009 0.14 -0.14 0.00  
MONTH TO DATE 0.71 2.19 -1.48 2.07  
SINCE MAR 1 5.61 7.60 -1.99 8.84  
SINCE JAN 1 7.18 10.11 -2.93 11.29  
 
DEGREE DAYS  
HEATING  
YESTERDAY 0 7 -7 5  
MONTH TO DATE 106 134 -28 68  
SINCE MAR 1 1210 1476 -266 1159  
SINCE JUL 1 5530 6253 -723 5220  
 
COOLING  
YESTERDAY 11 1 10 0  
MONTH TO DATE 21 11 10 7  
SINCE MAR 1 27 17 10 15  
SINCE JAN 1 27 17 10 15    
...............................................................  
 
WIND (MPH)  
HIGHEST WIND SPEED 32 HIGHEST WIND DIRECTION SW (210)  
HIGHEST GUST SPEED 44 HIGHEST GUST DIRECTION SW (210)  
AVERAGE WIND SPEED 12.8  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
THUNDERSTORM  
LIGHT RAIN  
FOG  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 93 3:00 AM  
LOWEST 36 4:00 PM  
AVERAGE 65  
   
......................................................  
 
THE DUPAGE AIRPORT CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 71 88 2001  
MINIMUM TEMPERATURE (F) 49 34 2011  
 
SUNRISE AND SUNSET  
MAY 16 2025...........SUNRISE 5:32 AM CDT SUNSET 8:08 PM CDT  
MAY 17 2025...........SUNRISE 5:31 AM CDT SUNSET 8:09 PM CDT  
 
- INDICATES NEGATIVE NUMBERS.  
R INDICATES RECORD WAS SET OR TIED.  
MM INDICATES DATA IS MISSING.  
T INDICATES TRACE AMOUNT.  
 
 
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